Home / 45,292.86-67,933.16-17,220

Finding the Fourth Proportional to 45,292.86, 67,933.16 and 17,220

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Solution

The fourth proportional to 45,292.86, 67,933.16 and 17,220 is: 25,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,292.86 : 67,933.16 = 17,220 : x
  2. Step 2: Convert to fraction form
    45,292.86/67,933.16 = 17,220/x
  3. Step 3: Cross multiply
    45,292.86x = 67,933.16 × 17,220
  4. Step 4: Simplify right side
    45,292.86x = 1,169,809,015.20
  5. Step 5: Solve for x
    x = 1,169,809,015.20/45,292.86
  6. Step 6: Final answer
    x = 25,827.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.